                            RenderingHints/VALUE_ANTIALIAS_OFF)))))
 
 (def default-primitive-params
-  {:filled false :color Color/BLACK})
+  {:filled false :color :black})
 
 (def stroke-caps
   {:butt BasicStroke/CAP_BUTT

            :strikethrough false
            :size 60}}]
   [:primitive-line
    {:x 180 :y 220 :w 0 :h 50 :color Color/RED
     :stroke {:width 10 :cap :round}
     :alpha 0.7}]
   [:primitive-line
    {:x 180 :y 220 :w 30 :h 0 :color Color/GREEN
     :alpha 0.6
     :stroke {:width 4}}]
   [:primitive-arc
    {:l 30 :t 20 :w 150 :h 100
     :start-angle 30 :arc-angle 100 :color Color/GREEN
     :filled true
     :alpha 0.7}]
   ])

   [:primitive-round-rect
    {:l 20 :t 10 :w 300 :h 300
     :arc-radius 100
     :filled true :color :pink
     :rotate 50}]
   [:primitive-round-rect
    {:l 20 :t 10 :w 300 :h 300
     :arc-radius 100 :rotate 50
     :filled false :color (Color. 0xE06060)
     :stroke {:width 5
              :cap :round
              :dashes [10 10] :dash-phase 0}}]
   [:primitive-ellipse
    {:l 25 :t 15 :w 110 :h 90
     :filled true :color :yellow :alpha 0.5}]
   [:primitive-polygon
    {:vertices [{:x 100 :y 100}
                {:x 50 :y 150}
